In sport, which measure is more important or relevant?
A. distance
B. displacement
C. depends on the situation
D. none of the above are important
C. depends on the situation
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Conscious initiation of muscle contraction is controlled by
a. the spinal cord b. the brain stem c. the cerebral cortex d. the thalamus e. none of the above
Cytoskeletal component made of actin.
Skeletal muscles help maintain body temperature in that
A. excess myosin is quickly metabolized to yield heat. B. the more active they are, the more heat is used up. C. they conserve actin and myosin in cold weather. D. the more active they are, the more heat is released.
What makes up the oil on the surface of the skin?
A. Waste material from cellular metabolism B. Ruptured cells from sebaceous glands C. Extracellular fluid not drained by the lymphatic system D. Waste material (bilirubin) from dead red blood cells E. Plasma leakage from damaged blood vessels